<template>
  <div class="app-container">
    <el-form label-width="120px">
      <el-form-item label="信息描述">
        <el-tag type="info">excel模版说明</el-tag>
        <el-tag>
          <i class="el-icon-download"/>
          <a :href="'/static/subject_mod.xls'">点击下载模版</a>
        </el-tag>
      </el-form-item>
      <el-form-item label="选择Excel">
        <el-upload
            ref="upload"
            :auto-upload="false"
            :on-success="fileUploadState"
            :disabled="importBtnDisabled"
            on-remove
            :limit="1"
            :action="BASE_API+'/serviceedu/subject/addSubject'"
            name="file"
            accept="application/vnd.ms-excel">
          <el-button slot="trigger" size="small" type="primary">选取文件</el-button>
          <el-button
              :loading="loading"
              style="margin-left: 10px;"
              size="small"
              type="success"
              @click="submitUpload">{{ fileUploadBtnText }}
          </el-button>
        </el-upload>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import teacher from '@/api/teacher';

export default {
  name: 'save',
  data() {
    return {
      BASE_API: process.env.BASE_API, // 接口API地址
      fileUploadBtnText: '上传到服务器', // 按钮文字
      importBtnDisabled: false, // 按钮是否禁用,
      importBtn: true,
      loading: false
    }
  },
  methods: {
    submitUpload() {
      this.fileUploadBtnText = '正在上传'
      this.importBtnDisabled = true
      this.loading = true
      this.$refs.upload.submit()
    },
    fileUploadState(response) {
      if (response.success === true) {
        this.fileUploadBtnText = '导入成功'
        this.loading = false
        this.$message({
          type: 'success',
          message: '导入成功'
        })
        this.$router.push({path: '/subject/list'})
      }
      if (response.success === false) {
        this.fileUploadBtnText = '导入失败'
        this.loading = false
        this.$message({
          type: 'error',
          message: '导入失败'
        })
      }
    }
  }
}
</script>

<style scoped>

</style>